3(m-7)=-4m

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Solution for 3(m-7)=-4m equation:


Simplifying
3(m + -7) = -4m

Reorder the terms:
3(-7 + m) = -4m
(-7 * 3 + m * 3) = -4m
(-21 + 3m) = -4m

Solving
-21 + 3m = -4m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '4m' to each side of the equation.
-21 + 3m + 4m = -4m + 4m

Combine like terms: 3m + 4m = 7m
-21 + 7m = -4m + 4m

Combine like terms: -4m + 4m = 0
-21 + 7m = 0

Add '21' to each side of the equation.
-21 + 21 + 7m = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 7m = 0 + 21
7m = 0 + 21

Combine like terms: 0 + 21 = 21
7m = 21

Divide each side by '7'.
m = 3

Simplifying
m = 3

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